मान लीजिए $f(x) = \frac{\sin x}{x}$,तो $\int_{0}^{\frac{\pi}{2}} f(x) f\left(\frac{\pi}{2} - x\right) dx =$

  • A
    $\frac{2}{\pi} \int_{0}^{\pi} f(x) dx$
  • B
    $\int_{0}^{\pi} f(x) dx$
  • C
    $\pi \int_{0}^{\pi} f(x) dx$
  • D
    $\frac{1}{\pi} \int_{0}^{\pi} f(x) dx$

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$\int_0^{\pi / 2} \frac{1}{1+\tan ^{2020}(x)} d x=$

समाकलन $\int_{-\frac{\pi}{2}}^{\frac{\pi}{2}} \left(x^2 + \log \frac{\pi-x}{\pi+x}\right) \cos x \, dx$ का मान ज्ञात कीजिए।

$\int_0^\pi \frac{x \sin x}{1+\cos ^2 x} d x=$

यदि $f$ एक सतत फलन है,तो निम्नलिखित में से कौन सा सत्य है?

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